hot-dipped galvanized steel pipe 1) material:Q195, Q215, ... .T:0.8-8mm 4) Length: 6000mm Hot-dipped galvanized steel pipe,galvanized steel pipe,galvanized steel tube1 ... ,GB/T3091-2008,DIN2440 Application rangeWidely used as the pipeline of industrial and civilian water, air, ... with black painting 3.All the production process are made under the ISO9001:2000 strictly. hot-dipped galvanized steel pipe